7 0.470703125 0.5595703125 0.94140625 0.751953125
8 0.861328125 0.302734375 0.2744140625 0.60546875
8 0.158203125 0.1015625 0.2998046875 0.203125
10 0.4990234375 0.599609375 0.998046875 0.794921875